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DSA

Algorithms, Data Structures, Competitive Coding, and problems from LeetCode with complete Solution Approach, Pseudocode, and Explanation.

Counter II - 2665

Counter II – 2665

🔗LC2665 🟢 Easy 🧩 Pattern – Closures 📅 Day 4/30 Days of JavaScript Write a function createCounter. It should accept an initial integer init. It should return an object with three functions. The three functions are: Example Solution We return an object with the three required functions as properties, we implement a… Read More »Counter II – 2665

To Be Or Not To Be – 2704

🔗LC2704 🟢 Easy 🧩 Pattern – Closures 📅 Day 3/30 Days of JavaScript Write a function expect that helps developers test their code. It should take in any value val and return an object with the following two functions. Example Solution Here, we need to understand how we are returning an object that… Read More »To Be Or Not To Be – 2704

Counter - 2620

Counter – 2620

🔗LC2620 🟢 Easy 🧩 Pattern – Closures 📅 Day 2/30 Days of JavaScript Given an integer n, return a counter function. This counter function initially returns n and then returns 1 more than the previous value every subsequent time it is called (n, n + 1, n + 2, etc). Example Solution In JavaScript,… Read More »Counter – 2620

Create Hello World Function — 130 JavaScript

Create Hello World Function – 2667

🔗 LC2667 🟢 Easy 🧩 Pattern – Closures and Higher Order Functions 📅 Day 1/30 Days of JavaScript Write a function createHelloWorld. It should return a new function that always returns “Hello World”. Example Solution While this is a straightforward question, it’s important to understand key JavaScript concepts such as Higher Order Functions,… Read More »Create Hello World Function – 2667